How to set camera to view the whole floorplan?
Your camera clipping end value is too small. Try setting it to 15' or more.

The floor plan is 14' 8.58" away from the camera, but the camera end clip value is 8' 4". This means that no objects further than 8' 4" away from the camera will be displayed in the camera view.



Also, make sure that the camera clipping start is smaller than the distance between the object and the camera, for the same reason.